Year	current US$
1970	890000.0005960462
1971	889999.9782443037
1972	869999.9917298553
1973	1479999.9911338077
1974	3310000.0787526364
1975	5839999.951422216
1976	2349999.9791383743
1977	6470000.034198162
1978	8629999.889060847
1979	7790000.017732386
1980	11800000.187009577
1981	24400000.32633543
1982	39940000.48004091
1983	34309999.38212337
1984	32709999.589249488
1985	20550000.31739474
1986	17169999.90306794
1987	24629999.39732256
1988	27490000.29452149
1989	37929999.524727434
1990	39630000.42922798
1991	33249999.63305891
1992	36139999.97265636
1993	29790000.235661846
1994	47010000.04075466
1995	37930000.91426079
1996	38069999.69109892
1997	29959999.410435528
1998	22709999.833256
1999	18100000.2361834
2000	22029999.529942874
2001	17599999.990314238
2002	25870000.369846843
2003	21110000.444576148
2004	44030000.466853365
2005	38270000.21003185
2006	45519999.58045784
2007	92109999.41453335
2008	164860002.42829293
2009	134359997.22033736
2010	184409999.0222603
2011	360610000.31046534
2012	392419991.96261126
2013	250690002.7021763
2014	217659997.92702505
2015	135979996.83395028
2016	107799998.38583171
2017	136879998.4045327
2018	114269999.05332926
2019	96730001.33782622
2020	60400000.46044591
2021	80800001.14813443
2022	98090002.23129994